1
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Hu J, Yan X, Chris Le X. Label-free detection of biomolecules using inductively coupled plasma mass spectrometry (ICP-MS). Anal Bioanal Chem 2024; 416:2625-2640. [PMID: 38175283 DOI: 10.1007/s00216-023-05106-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024]
Abstract
Bioassays using inductively coupled plasma mass spectrometry (ICP-MS) have gained increasing attention because of the high sensitivity of ICP-MS and the various strategies of labeling biomolecules with detectable metal tags. The classic strategy to tag the target biomolecules is through direct antibody-antigen interaction and DNA hybridization, and requires the separation of the bound from the unbound tags. Label-free ICP-MS techniques for biomolecular assays do not require direct labeling: they generate detectable metal ions indirectly from specific biomolecular reactions, such as enzymatic cleavage. Here, we highlight the development of three main strategies of label-free ICP-MS assays for biomolecules: (1) enzymatic cleavage of metal-labeled substrates, (2) release of immobilized metal ions from the DNA backbone, and (3) nucleic acid amplification-assisted aggregation and release of metal tags to achieve amplified detection. We briefly describe the fundamental basis of these label-free ICP-MS assays and discuss the benefits and drawbacks of various designs. Future research is needed to reduce non-specific adsorption and minimize background and interference. Analytical innovations are also required to confront challenges faced by in vivo applications.
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Affiliation(s)
- Jianyu Hu
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada
| | - Xiaowen Yan
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China.
| | - X Chris Le
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada.
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2
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Zhang Q, Duan J, Chen J, Du J, Tong H, Liao S. A Novel Enhanced-Fluorescent Probe Based on DHLA-Stabilized Red-Emitting Copper Nanoclusters for Methimazole Detection Via Aggregation-Induced Emission Effect. J Fluoresc 2024:10.1007/s10895-024-03701-0. [PMID: 38652358 DOI: 10.1007/s10895-024-03701-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024]
Abstract
Herein, an aqueous phase synthesis approach was presented for the fabrication of copper nanoclusters (Cu NCs) with aggregation-induced emission (AIE) property, utilizing lipoic acid and NaBH4 as ligands and reducing agent, respectively. The as-synthesized Cu NCs exhibit an average size of 3.0 ± 0.2 nm and demonstrate strong solid-state fluorescence upon excitation with UV light. However, when dissolved in water, no observable fluorescent emission is detected in the aqueous solution of Cu NCs. Remarkably, the addition of Methimazole induced a significant red fluorescence from the aqueous solution of Cu NCs. This unexpected phenomenon can be ascribed to the aggregation of negatively charged Cu NCs caused by electrostatic interaction with positively charged imidazole groups in Methimazole, resulting in enhanced fluorescence through AIE mechanism. Therefore, there exists an excellent linear correlation between the fluorescent intensities of Cu NCs aqueous solution and the concentration of Methimazole within a range of 0.1-1.5 mM with a low limit of detection of 82.2 µM. Importantly, the designed enhanced-fluorescent nanoprobe based on Cu NCs exhibits satisfactory performance in assaying commercially available Methimazole tablets, demonstrating its exceptional sensitivity, reliability, and accuracy.
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Affiliation(s)
- Qikun Zhang
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Jingyi Duan
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Jinwen Chen
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Juan Du
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Huixiao Tong
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Shenghua Liao
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China.
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3
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Lu J, Wang D, Li X, Guo W, Tian C, Luan F, Zhuang X. Preparation of a Red-Emitting, Chitosan-Stabilized Copper Nanocluster Composite and Its Application as a Hydrogen Peroxide Detection Probe in the Analysis of Water Samples. BIOSENSORS 2023; 13:361. [PMID: 36979573 PMCID: PMC10046763 DOI: 10.3390/bios13030361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Hydrogen peroxide (H2O2) is an important reactive oxygen species that mediates a variety of physiological functions in biological processes, and it is an essential mediator in food, pharmaceutical, and environmental analysis. However, H2O2 can be dangerous and toxic at certain concentrations. It is crucial to detect the concentration of H2O2 in the environment for human health and environmental protection. Herein, we prepared the red-emitting copper nanoclusters (Cu NCs) by a one-step method, with lipoic acid (LA) and sodium borohydride as protective ligands and reducing agents, respectively, moreover, adding chitosan (CS) to wrap LA-Cu NCs. The as-prepared LA-Cu NCs@CS have stronger fluorescence than LA-Cu NCs. We found that the presence of H2O2 causes the fluorescence of LA-Cu NCs@CS to be strongly quenched. Based on this, a fluorescent probe based on LA-Cu NCs@CS was constructed for the detection of H2O2 with a limit of detection of 47 nM. The results from this research not only illustrate that the as--developed fluorescent probe exhibits good selectivity and high sensitivity to H2O2 in environmental water samples but also propose a novel strategy to prepare red-emitting copper nanoclusters (Cu NCs) by a one-step method.
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Affiliation(s)
- Jiaojiao Lu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Dawei Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xin Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Wei Guo
- Shandong Dyne Marine Biopharmaceutical Co., Ltd., Weihai 264300, China
| | - Chunyuan Tian
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Feng Luan
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xuming Zhuang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
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4
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Li Z, Pi T, Yang K, Xia Z, Feng Y, Zheng X, Deng R, Chi B. Label-free fluorescence strategy for methyltransferase activity assay based on poly-thymine copper nanoclusters engineered by terminal deoxynucleotidyl transferase. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 260:119924. [PMID: 33993023 DOI: 10.1016/j.saa.2021.119924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/02/2021] [Accepted: 05/04/2021] [Indexed: 06/12/2023]
Abstract
The assay of detecting DNA methyltransferase activity has been identified as one of the central challenges in cancer diagnostics as DNA methylation is closely related to the diagnosis and treatment of tumors. In this study, a label-free fluorescence probe based on poly-thymine copper nanoclusters engineered by terminal deoxynucleotidyl transferase is proposed for methyltransferase activity assay. Taking advantage of the efficient polymerization extension reaction catalyzed by terminal deoxynucleotidyl transferase and the copper nanoclusters with large Stokes shift instead of labeling fluorescent dyes, the strategy exhibits a broader linear scope from 1 to 300 U mL-1 with a detection limit of 0.176 U mL-1. The economical method is specificity for M.SssI and also provides a convenient and high-throughput platform for screening the DNA methylation inhibitors, which displays a great potential for the practical applications of the drug development and clinical cancer diagnosis in the future.
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Affiliation(s)
- Zhimei Li
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China
| | - Ting Pi
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China
| | - Kefang Yang
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China
| | - Ziyi Xia
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China
| | - Yuchuan Feng
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China
| | - Xiangjuan Zheng
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China
| | - Ruihong Deng
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China
| | - Baozhu Chi
- Department of Chemistry, Nanchang University, Nanchang 330031, PR China.
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5
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Song Q, Chen C, Yu W, Yang L, Zhang K, Zheng J, Du X, Chen H. In situ formation of DNA-templated copper nanoparticles as fluorescent indicator for hydroxylamine detection. RSC Adv 2019; 9:25976-25980. [PMID: 35531001 PMCID: PMC9070379 DOI: 10.1039/c9ra04476k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 08/14/2019] [Indexed: 11/21/2022] Open
Abstract
Herein, we develop a facile method for selective and sensitive detection of hydroxylamine (HA) based on the in situ formation of DNA templated copper nanoparticles (DNA-CuNPs) as fluorescent probes. It is firstly found that HA as a reducing agent can play a key role in the in situ formation of fluorescent DNA-CuNPs. This special optical property of DNA-CuNPs with (λ ex = 340 nm, λ em = 588 nm) with a mega-Stokes shifting (248 nm) makes it applicable for the turn-on detection of HA. In addition, this fluorescent method has several advantages such as being simple, rapid, and environmentally friendly, because it avoids the traditional organic dye molecules and complex procedures. Under optimized conditions, this platform achieves a fluorescent response for HA with a detection limit of 0.022 mM. Especially, successful detection capability in tap waters and ground waters exhibits its potential to be general method.
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Affiliation(s)
- Quanwei Song
- State Key Laboratory of Petroleum Pollution Control Beijing 102206 China +86-10-80169547
- CNPC Research Institute of Safety and Environment Technology Beijing 102206 China
| | - Changzhao Chen
- State Key Laboratory of Petroleum Pollution Control Beijing 102206 China +86-10-80169547
- CNPC Research Institute of Safety and Environment Technology Beijing 102206 China
| | - Wenhe Yu
- State Key Laboratory of Petroleum Pollution Control Beijing 102206 China +86-10-80169547
- CNPC Research Institute of Safety and Environment Technology Beijing 102206 China
| | - Lixia Yang
- Beijing Key Laboratory of Metal Material Characterization, Central Iron and Steel Research Institute Beijing 100081 China
| | - Kunfeng Zhang
- State Key Laboratory of Petroleum Pollution Control Beijing 102206 China +86-10-80169547
- CNPC Research Institute of Safety and Environment Technology Beijing 102206 China
| | - Jin Zheng
- State Key Laboratory of Petroleum Pollution Control Beijing 102206 China +86-10-80169547
- CNPC Research Institute of Safety and Environment Technology Beijing 102206 China
| | - Xianyuan Du
- State Key Laboratory of Petroleum Pollution Control Beijing 102206 China +86-10-80169547
- CNPC Research Institute of Safety and Environment Technology Beijing 102206 China
| | - Hongkun Chen
- State Key Laboratory of Petroleum Pollution Control Beijing 102206 China +86-10-80169547
- CNPC Research Institute of Safety and Environment Technology Beijing 102206 China
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6
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Li Y, Tang D, Zhu L, Cai J, Chu C, Wang J, Xia M, Cao Z, Zhu H. Label-free detection of miRNA cancer markers based on terminal deoxynucleotidyl transferase-induced copper nanoclusters. Anal Biochem 2019; 585:113346. [PMID: 31401004 DOI: 10.1016/j.ab.2019.113346] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/22/2019] [Accepted: 06/22/2019] [Indexed: 11/25/2022]
Abstract
The variations in microRNA (miRNA) expression levels can be useful biomarkers for the diagnosis of different cancers. In this work, a label-free and sensitive fluorescent method for detection of miRNA-21 is described based on duplex-specific nuclease (DSN) assist target recycling and terminal deoxynucleotidyl transferase (TdT) induced copper nanoclusters (CuNCs). In the absence of target, the 3'-phosphorylated probe DNA cannot be hydrolyzed by DSN and extended by TdT, and failed to synthesizing fluorescent CuNCs. However, the target miRNA-21 can caused the digestion of probe DNA with DSN, releasing primer DNA with 3'-OH. After that, the primer DNA can forms long poly T with the assistance of TdT, leading to synthesize high fluorescent CuNCs. The fluorescence change of CuNCs can be used to identify the concentration of target miRNA-21. Under optimal experimental conditions, this strategy could quantitatively detect miRNA-21 down to 18.7 pM. We have also demonstrated the practical application of our proposed method for monitoring miRNA-21 expression levels in cancer cells. Moreover, this method show good specificity for miRNA-21 detection due to the strong preference of DSN for cutting perfectly matched DNA/RNA duplex, which holds great potential for highly specific quantification of biomarkers in bioanalysis and clinical diagnosis.
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Affiliation(s)
- Yiting Li
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Dihong Tang
- Department of Gynecologic Oncology, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medcine, Central South University, 410013, Changsha, Hunan, China.
| | - Li Zhu
- Department of Gynecologic Oncology, The Peopie's Hospital of Taojiang County, China
| | - Jingting Cai
- Department of Gynecologic Oncology, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medcine, Central South University, 410013, Changsha, Hunan, China
| | - Chaonan Chu
- Department of Gynecologic Oncology, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medcine, Central South University, 410013, Changsha, Hunan, China
| | - Jing Wang
- Department of Gynecologic Oncology, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medcine, Central South University, 410013, Changsha, Hunan, China
| | - Man Xia
- Department of Gynecologic Oncology, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medcine, Central South University, 410013, Changsha, Hunan, China
| | - Zhenzhen Cao
- Department of Gynecologic Oncology, Hunan Cancer Hospital and Affiliated Cancer Hospital of Xiangya School of Medcine, Central South University, 410013, Changsha, Hunan, China
| | - Hong Zhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
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7
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Liu R, Hu J, Chen Y, Jiang M, Lv Y. Label-Free Nuclease Assay with Long-Term Stability. Anal Chem 2019; 91:8691-8696. [DOI: 10.1021/acs.analchem.9b02467] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Rui Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jianyu Hu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yongxin Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Min Jiang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yi Lv
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
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8
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He Y, Tian F, Zhou J, Jiao B. Alkaline phosphatase determination via regulation of enzymatically generated poly(thymine) as a template for fluorescent copper nanoparticle formation. Anal Bioanal Chem 2019; 411:3811-3818. [PMID: 31104084 DOI: 10.1007/s00216-019-01851-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/01/2019] [Accepted: 04/12/2019] [Indexed: 11/28/2022]
Abstract
We propose a new fluorometric method for alkaline phosphatase (ALP) determination. This method is based on the regulation of enzymatically generated poly(thymine) for the preparation of copper nanoparticles (CuNPs). 2'-Deoxythymidine 5'-triphosphate (dTTP) serves as the source for polymerization mediated by terminal deoxynucleotidyl transferase (TdT). This process generates poly(thymine), which acts as the template for synthesis of fluorescent CuNPs. However, if ALP catalyzes the hydrolysis of dTTP, the TdT-mediated polymerization will be disabled. This prevents the formation of CuNPs and causes a drop in fluorescence. The findings were used to design a sensitive and selective fluorometric method for ALP determination. A linear response in the activity range from 0.1 to 20 U L-1 and a limit of quantification of 0.3 U L-1 were obtained. The results indicate that the proposed method can be successfully applied to ALP assay in spiked diluted serum. This demonstrates the method's reliability and practicability. Graphical abstract A fluoromoetric method for alkaline phosphatase assay has been developed based on regulation of enzymatically generated poly(thymine) as template for the formation of fluorescent CuNPs.
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Affiliation(s)
- Yue He
- Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing, 400712, China. .,College of Food Science, Southwest University, Chongqing, 400712, China.
| | - Fengyu Tian
- Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing, 400712, China.,College of Food Science, Southwest University, Chongqing, 400712, China
| | - Jing Zhou
- Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing, 400712, China.,College of Food Science, Southwest University, Chongqing, 400712, China
| | - Bining Jiao
- Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture, Citrus Research Institute, Southwest University, Chongqing, 400712, China.,College of Food Science, Southwest University, Chongqing, 400712, China
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9
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Qing Z, Bai A, Xing S, Zou Z, He X, Wang K, Yang R. Progress in biosensor based on DNA-templated copper nanoparticles. Biosens Bioelectron 2019; 137:96-109. [PMID: 31085403 DOI: 10.1016/j.bios.2019.05.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/06/2019] [Indexed: 02/01/2023]
Abstract
During the last decades, by virtue of their unique physicochemical properties and potential application in microelectronics, biosensing and biomedicine, metal nanomaterials (MNs) have attracted great research interest and been highly developed. Deoxyribonucleic acid (DNA) is a particularly interesting ligand for templating bottom-up nanopreparation, by virtue of its excellent properties including nanosized geometry structure, programmable and artificial synthesis, DNA-metal ion interaction and powerful molecular recognition. DNA-templated copper nanoparticles (DNA-CuNPs) has been developed in recent years. Because of its advantages including simple and rapid preparation, high efficiency, MegaStokes shifting and low biological toxicity, DNA-CuNPs has been highly exploited for biochemical sensing from 2010, especially as a label-free detection manner, holding advantages in multiple analytical technologies including fluorescence, electrochemistry, surface plasmon resonance, inductively coupled plasma mass spectrometry and surface enhanced Raman spectroscopy. This review comprehensively tracks the preparation of DNA-CuNPs and its application in biosensing, and highlights the potential development and challenges regarding this field, aiming to promote the advance of this fertile research area.
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Affiliation(s)
- Zhihe Qing
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China.
| | - Ailing Bai
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China
| | - Shuohui Xing
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China
| | - Zhen Zou
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Xiaoxiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China
| | - Ronghua Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Hunan Provincial Engineering Research Center for Food Processing of Aquatic Biotic Resources, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, People's Republic of China.
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10
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Batule BS, Lee CY, Park KS, Park HG. Polymerization-sensitive switch-on monomer for terminal transferase activity assay. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:256-259. [PMID: 30688096 DOI: 10.1080/21691401.2018.1552593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We herein describe a simple but efficient method for the determination of terminal transferase (TdT) activity, which relies on our finding that Fe(III)-quenched boron-dipyrromethene (BODIPY)-ATP is utilized as a switch-on monomer for polymerization and enables the facile synthesis of fluorescence oligonucleotides without additional, post-processing steps. As TdT carries out the synthesis of DNA by adding the monomers into growing chains, Fe(III) is displaced from BODIPY with the release of pyrophosphate group, which consequently leads to the generation of highly fluorescent long oligonucleotides. With this strategy, we selectively detected the TdT activity with high sensitivity. In addition, its practical applicability was successfully demonstrated by determining TdT activities in human serum.
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Affiliation(s)
- Bhagwan S Batule
- a Department of Chemical and Biomolecular Engineering (BK21+ Program) , KAIST , Daejeon , Republic of Korea
| | - Chang Yeol Lee
- a Department of Chemical and Biomolecular Engineering (BK21+ Program) , KAIST , Daejeon , Republic of Korea
| | - Ki Soo Park
- b Department of Biological Engineering, College of Engineering , Konkuk University , Seoul , Republic of Korea
| | - Hyun Gyu Park
- a Department of Chemical and Biomolecular Engineering (BK21+ Program) , KAIST , Daejeon , Republic of Korea
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11
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Nie F, Ga L, Ai J. One-Pot Synthesis of Nucleoside-Templated Fluorescent Silver Nanoparticles and Gold Nanoparticles. ACS OMEGA 2019; 4:7643-7649. [PMID: 31459856 PMCID: PMC6649123 DOI: 10.1021/acsomega.9b00701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 04/12/2019] [Indexed: 06/10/2023]
Abstract
In this study, a simple one-pot method was proposed to synthesize water-soluble nucleoside-templated fluorescent silver nanoparticles (Ag NPs) and gold nanoparticles (Au NPs). The nucleoside-templated fluorescent Ag NPs and Au NPs were further characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and fluorescence spectroscopy (FLS). The effects of the molar ratio of reactants, reaction environment, and nucleotides on the synthesis of Ag NPs and Au NPs were also discussed. The results showed that nucleoside and ascorbic acid acted as a stabilizer and reductant, respectively, in the synthesis of Ag NPs and Au NPs, while citrate buffer acted as both a pH regulator and reductant. The synthesized nucleoside-templated fluorescent Ag NPs and Au NPs have good fluorescence stability and easy water solubility. In this study, a simple one-pot method was proposed to synthesize water-soluble nucleoside-templated fluorescent silver nanoparticles (Ag NPs) and gold nanoparticles (Au NPs).
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Affiliation(s)
- Furong Nie
- College
of Chemistry and Enviromental Science and Inner Mongolia Key Laboratory for
Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, 81 Zhaowudalu, Hohhot 010022, China
| | - Lu Ga
- College
of Pharmacy, Inner Mongolia Medical University, Jinchuankaifaqu, Hohhot 010110, People’s Republic of China
| | - Jun Ai
- College
of Chemistry and Enviromental Science and Inner Mongolia Key Laboratory for
Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, 81 Zhaowudalu, Hohhot 010022, China
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12
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Liu G, He W, Liu C. Sensitive detection of uracil-DNA glycosylase (UDG) activity based on terminal deoxynucleotidyl transferase-assisted formation of fluorescent copper nanoclusters (CuNCs). Talanta 2019; 195:320-326. [DOI: 10.1016/j.talanta.2018.11.083] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/06/2018] [Accepted: 11/22/2018] [Indexed: 10/27/2022]
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13
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He Y, Tian F, Zhou J, Jiao B. A fluorescent aptasensor for ochratoxin A detection based on enzymatically generated copper nanoparticles with a polythymine scaffold. Mikrochim Acta 2019; 186:199. [PMID: 30796615 DOI: 10.1007/s00604-019-3314-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 02/11/2019] [Indexed: 12/13/2022]
Abstract
A fluorescence enhancement method is presented for the determination of ochratoxin A (OTA). The interaction of OTA with its aptamer causes structural changes which, in turn, change fluorescence of enzymatically generated polythymine-coated copper nanoparticles (CuNPs) (with excitation/emission maxima at 340/625 nm). The OTA-binding aptamer was immobilized on magnetic beads. When it binds OTA, it is partially released and exposes a region with a partly complimentary DNA strand (cDNA). After magnetic separation, the cDNA was employed as a primer to trigger the terminal deoxynucleotidyl transferase-mediated polymerization. This process generates polythymine which act as a template for synthesis of the CuNPs. The method is sensitive in having a 2.0 nM detection limit for OTA. It was successfully applied to the determination of OTA in spiked diluted red wine. Graphical abstract Schematic presentation of a fluorometric enhancement method for ochratoxin A assay based on ochratoxin A inducing structure switching of its aptamer and enzymatically generated polythymine for copper nanoparticles formation.
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Affiliation(s)
- Yue He
- Citrus Research Institute, Southwest University, Chongqing, 400712, People's Republic of China. .,Ministry of Agriculture, Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Chongqing, 400712, People's Republic of China. .,College of Food Science, Southwest University, Chongqing, 400712, People's Republic of China.
| | - Fengyu Tian
- Citrus Research Institute, Southwest University, Chongqing, 400712, People's Republic of China.,Ministry of Agriculture, Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Chongqing, 400712, People's Republic of China.,College of Food Science, Southwest University, Chongqing, 400712, People's Republic of China
| | - Jing Zhou
- Citrus Research Institute, Southwest University, Chongqing, 400712, People's Republic of China.,Ministry of Agriculture, Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Chongqing, 400712, People's Republic of China.,College of Food Science, Southwest University, Chongqing, 400712, People's Republic of China
| | - Bining Jiao
- Citrus Research Institute, Southwest University, Chongqing, 400712, People's Republic of China. .,Ministry of Agriculture, Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Chongqing, 400712, People's Republic of China. .,College of Food Science, Southwest University, Chongqing, 400712, People's Republic of China.
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14
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Sarac I, Hollenstein M. Terminal Deoxynucleotidyl Transferase in the Synthesis and Modification of Nucleic Acids. Chembiochem 2019; 20:860-871. [PMID: 30451377 DOI: 10.1002/cbic.201800658] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Indexed: 12/26/2022]
Abstract
The terminal deoxynucleotidyl transferase (TdT) belongs to the X family of DNA polymerases. This unusual polymerase catalyzes the template-independent addition of random nucleotides on 3'-overhangs during V(D)J recombination. The biological function and intrinsic biochemical properties of the TdT have spurred the development of numerous oligonucleotide-based tools and methods, especially if combined with modified nucleoside triphosphates. Herein, we summarize the different applications stemming from the incorporation of modified nucleotides by the TdT. The structural, mechanistic, and biochemical properties of this polymerase are also discussed.
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Affiliation(s)
- Ivo Sarac
- Laboratory for Bioorganic Chemistry of Nucleic Acids, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3523, 28, rue du Docteur Roux, 75724, Paris Cedex 15, France
| | - Marcel Hollenstein
- Laboratory for Bioorganic Chemistry of Nucleic Acids, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3523, 28, rue du Docteur Roux, 75724, Paris Cedex 15, France
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15
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Liu R, Wang C, Hu J, Su Y, Lv Y. DNA-templated copper nanoparticles: Versatile platform for label-free bioassays. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.06.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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16
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Zhang D, Hu J, Yang XY, Wu Y, Su W, Zhang CY. Target-initiated synthesis of fluorescent copper nanoparticles for the sensitive and label-free detection of bleomycin. NANOSCALE 2018; 10:11134-11142. [PMID: 29873380 DOI: 10.1039/c8nr02780c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fluorescent copper nanoparticles (CuNPs) have received great attention due to their distinct characteristics of facile synthesis, tunable fluorescence emission, high photostability, and biological compatibility, and they have been widely used for chemical and biological analyses. Bleomycins (BLMs) are widely used antitumor agents for the clinical treatment of various cancers. Here, we develop a sensitive and label-free fluorescence method for the quantitative detection of BLM on the basis of BLM-initiated enzymatic polymerization-mediated synthesis of fluorescent CuNPs. We design two hairpin DNAs: one (Hp1) for the recognition of BLM and the other (Hp2) for signal amplification. In the presence of BLM, it may recognize and cleave the 5'-GC-3' site of the Hp1 stem, releasing the 8-17 DNAzyme fragment. The resultant 8-17 DNAzyme fragments may bind with the loop of Hp2 to form a partial double-stranded DNA (dsDNA) duplex, initiating the cyclic cleavage of Hp2 in the presence of Zn2+-dependent DNAzymes and generating numerous new DNA fragments with the free 3'-OH terminal, which can induce the formation of a poly(thymine) (poly-T) sequence with the assistance of terminal deoxynucleotidyl transferase (TdTase). Subsequently, the ploy-T sequence may function as the template for the synthesis of CuNPs with strong fluorescence emission. This method shows good selectivity and high sensitivity with a detection limit as low as 8.1 × 10-16 M, and it exhibits good performance in serum samples. Moreover, this method has distinct advantages of simplicity and low cost, holding great potential in clinical diagnosis and biomedical research.
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Affiliation(s)
- Dandan Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, China.
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17
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Xu F, Luo L, Shi H, He X, Lei Y, Tang J, He D, Qiao Z, Wang K. Label-free and sensitive microRNA detection based on a target recycling amplification-integrated superlong poly(thymine)-hosted copper nanoparticle strategy. Anal Chim Acta 2018; 1010:54-61. [PMID: 29447671 DOI: 10.1016/j.aca.2018.01.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/07/2018] [Accepted: 01/15/2018] [Indexed: 11/17/2022]
Abstract
Poly(thymine)-hosted copper nanoparticles (poly T-CuNPs) have emerged as a promising label-free fluorophore for bioanalysis, but its application in RNA-related studies is still rarely explored. Herein, by utilizing duplex-specific nuclease (DSN) as a convertor to integrate target recycling mechanism into terminal deoxynucleotidyl transferase (TdT)-mediated superlong poly T-CuNPs platform, a specific and sensitive method for microRNA detection has been developed. In this strategy, a 3'-phosphorylated DNA probe can hybridize with target RNA and then be cut by DSN to produce 3'-hydroxylated fragments, which can be further tailed by TdT with superlong poly T for fluorescent CuNPs synthesis. As proof of concept, an analysis of let-7d was achieved with a good linear correlation between 20 and 1000 pM (R2 = 0.9965) and a detection limit of 20 pM. Moreover, both homologous and heterologous microRNAs were also effectively discriminated. This strategy might pave a brand-new way for designing label-free and sensitive microRNA assays.
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Affiliation(s)
- Fengzhou Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
| | - Lan Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
| | - Hui Shi
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China.
| | - Xiaoxiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
| | - Yanli Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
| | - Jinlu Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
| | - Dinggeng He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
| | - Zhenzhen Qiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, China.
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18
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Peng XS, Chen SY, Ou LJ, Luo FW, Qin SW, Sun AM. Hairpin loop-enhanced fluorescent copper nanoclusters and application in S1 nuclease detection. Analyst 2018; 143:415-419. [DOI: 10.1039/c7an01725a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel hairpin DNA template with an AT24 double strand stem and a six-base loop was demonstrated for the first time to prepare CuNCs with dramatically enhanced fluorescence and applied for the sensitive detection of S1 nuclease.
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Affiliation(s)
- Xian-sui Peng
- Key Laboratory of Green Functional Building Materials
- College of Material and Chemical Engineering
- Hunan Institute of Technology
- Hengyang 421002
- P. R. China
| | - Si-Yu Chen
- Key Laboratory of Green Functional Building Materials
- College of Material and Chemical Engineering
- Hunan Institute of Technology
- Hengyang 421002
- P. R. China
| | - Li-Juan Ou
- Key Laboratory of Green Functional Building Materials
- College of Material and Chemical Engineering
- Hunan Institute of Technology
- Hengyang 421002
- P. R. China
| | - Feng-Wu Luo
- Key Laboratory of Green Functional Building Materials
- College of Material and Chemical Engineering
- Hunan Institute of Technology
- Hengyang 421002
- P. R. China
| | - Si-Wen Qin
- Key Laboratory of Green Functional Building Materials
- College of Material and Chemical Engineering
- Hunan Institute of Technology
- Hengyang 421002
- P. R. China
| | - Ai-ming Sun
- Key Laboratory of Green Functional Building Materials
- College of Material and Chemical Engineering
- Hunan Institute of Technology
- Hengyang 421002
- P. R. China
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19
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Song Q, Yang L, Chen H, Zhang R, Na N, Ouyang J. A label-free fluorometric assay for actin detection based on enzyme-responsive DNA-templated copper nanoparticles. Talanta 2017; 174:444-447. [DOI: 10.1016/j.talanta.2017.06.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/08/2017] [Accepted: 06/12/2017] [Indexed: 11/26/2022]
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20
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Wang Y, Chen T, Zhuang Q, Ni Y. One-Pot Aqueous Synthesis of Nucleoside-Templated Fluorescent Copper Nanoclusters and Their Application for Discrimination of Nucleosides. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32135-32141. [PMID: 28853550 DOI: 10.1021/acsami.7b09768] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A facile, one-pot synthetic method has been proposed to prepare water-soluble fluorescent copper nanoclusters (CuNCs) templated by nucleosides. The nucleoside-templated fluorescent CuNCs were further characterized by using various analytical techniques, such as transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and fluorescence spectroscopy. The role of various reactants such as ascorbic acid, nucleoside, and citrate buffer in the synthesis process of fluorescent CuNCs was explored. The results showed that nucleoside and ascorbic acid were very likey to respectively act as a stabilizer and a reductant to form nanoclusters, and citrate buffer acted as both pH regulator solution and a reducing agent. The fluorescence spectra of various nucleoside-templated CuNCs were finally combined with multivariate chemometrics analysis for discrimination of different nucleosides.
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Affiliation(s)
- Yong Wang
- College of Chemistry, Nanchang University , Nanchang, Jiangxi 330031, China
| | - Tianxia Chen
- College of Chemistry, Nanchang University , Nanchang, Jiangxi 330031, China
| | - Qianfen Zhuang
- College of Chemistry, Nanchang University , Nanchang, Jiangxi 330031, China
| | - Yongnian Ni
- College of Chemistry, Nanchang University , Nanchang, Jiangxi 330031, China
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang, Jiangxi 330047, China
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21
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Luo L, Xu F, Shi H, He X, Qing T, Lei Y, Tang J, He D, Wang K. Label-free and sensitive assay for deoxyribonuclease I activity based on enzymatically-polymerized superlong poly(thymine)-hosted fluorescent copper nanoparticles. Talanta 2017; 169:57-63. [PMID: 28411822 DOI: 10.1016/j.talanta.2017.03.047] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/02/2017] [Accepted: 03/16/2017] [Indexed: 02/01/2023]
Abstract
Deoxyribonuclease I (DNase I) is an important physiological indicator and diagnostic biomarker, but traditional methods for assessing its activity are time-consuming, laborious, and usually radioactive. Herein, by effectively combining the special functions of DNase I and terminal deoxynucleotidyl transferase (TdT), a simple, green, cost-effective, label-free and ultrasensitive assay for DNase I activity has been constructed based on superlong poly(thymine)-hosted copper nanoparticles (poly T-CuNPs). In this strategy, a 3'-phosphorylated DNA primer is designed to block TdT polymerization. After addition of DNase I, the primer could be digested to release 3'-hydroxylated fragments, which could further be tailed by TdT in dTTP pool with superlong poly T ssDNA for CuNPs formation. Fluorescence measurements and gel electrophoresis demonstrated its feasibility for DNase I analysis. The results indicated that with a size of 3-4nm, the CuNPs templated by TdT-polymerized superlong poly T (>500 mer) had several advantages such as short synthetic time (<5min), large Stokes shift (~275nm) and intense red fluorescence emission. Under the optimal conditions, quantitative detection of DNase I was realized, showing a good linear correlation between 0.02 and 2.0U/mL (R2=0.9928) and a detection limit of 0.02U/mL. By selecting six other nucleases or proteins as controls, an excellent specificity was also verified. Then, the strategy was successfully applied to detect DNase I in diluted serum with a standard addition method, thus implying its reliability and practicability for biological samples. The proposed strategy might be promising as a sensing platform for related molecular biology and disease studies.
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Affiliation(s)
- Lan Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China
| | - Fengzhou Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China
| | - Hui Shi
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China.
| | - Xiaoxiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China
| | - Taiping Qing
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China
| | - Yanli Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China
| | - Jinlu Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China
| | - Dinggeng He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, PR China.
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22
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Shi YE, Luo S, Ji X, Liu F, Chen X, Huang Y, Dong L, Wang L. Synthesis of ultra – stable copper nanoclusters and their potential application as a reversible thermometer. Dalton Trans 2017; 46:14251-14255. [DOI: 10.1039/c7dt02193c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We report a strategy for the synthesis of luminescent copper nanoclusters that demonstrate potential application as a thermometer.
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Affiliation(s)
- Yu-e Shi
- Shenzhen Key Laboratory of Polymer Science and Technology
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Shaojuan Luo
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics
- International Collaborative Laboratory of 2D Materials for Optoelectronic Science and Technology
- Shenzhen University
- Shenzhen 518060
- China
| | - Xiaojing Ji
- College of Science and Technology
- Agricultural University of Hebei
- 061100 Huanghua
- China
| | - Fuwei Liu
- Shenzhen Key Laboratory of Polymer Science and Technology
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Xian Chen
- Shenzhen Key Laboratory of Polymer Science and Technology
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Yang Huang
- Shenzhen Key Laboratory of Polymer Science and Technology
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen 518060
- China
| | - Lei Dong
- Department of Physics
- Southern University of Science and Technology
- Shenzhen 518055
- China
| | - Lei Wang
- Shenzhen Key Laboratory of Polymer Science and Technology
- College of Materials Science and Engineering
- Shenzhen University
- Shenzhen 518060
- China
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23
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Song Q, Wang R, Sun F, Chen H, Wang Z, Na N, Ouyang J. A nuclease-assisted label-free aptasensor for fluorescence turn-on detection of ATP based on the in situ formation of copper nanoparticles. Biosens Bioelectron 2016; 87:760-763. [PMID: 27649332 DOI: 10.1016/j.bios.2016.09.029] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 08/21/2016] [Accepted: 09/08/2016] [Indexed: 10/21/2022]
Abstract
Owing to their promising advantages in biochemical analysis, aptamer-based sensing systems for the fluorescence detection of important biomolecules are being extensively investigated. Herein, we propose a turn-on fluorescent aptasensor for label-free detection of adenosine triphosphate (ATP) by utilizing the in situ formation of copper nanoparticles (CuNPs) and the specific digestion capability of exonuclease I (Exo I). In this assay, the addition of ATP can effectively hinder the digestion of aptamer-derived oligonucleotides due to the G-quadruplex structure. Accordingly, the remaining poly thymine at 5'-terminus of substrate DNA can serve as an efficient template for red-emitting fluorescent CuNPs with a Mega-Stokes shifting in buffered solution, which can be used to evaluate the concentration of ATP. This method is cost-effective and facile, because it avoids the use of traditional dye-labeled DNA strands and complex operation steps. Under optimized conditions, this method achieves a selective response for ATP with a detection limit of 93nM, and exhibits a good detection performance in biological samples.
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Affiliation(s)
- Quanwei Song
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Petroleum Pollution Control, Beijing 102206, China; CNPC Research Institute of Safety and Environment Technology, Beijing 102206, China
| | - Ruihua Wang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Feifei Sun
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hongkun Chen
- State Key Laboratory of Petroleum Pollution Control, Beijing 102206, China; CNPC Research Institute of Safety and Environment Technology, Beijing 102206, China
| | - Zoumengke Wang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Na Na
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jin Ouyang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
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24
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Chi BZ, Liang RP, Qiu WB, Yuan YH, Qiu JD. Direct fluorescence detection of microRNA based on enzymatically engineered primer extension poly-thymine (EPEPT) reaction using copper nanoparticles as nano-dye. Biosens Bioelectron 2016; 87:216-221. [PMID: 27566394 DOI: 10.1016/j.bios.2016.08.042] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 07/31/2016] [Accepted: 08/13/2016] [Indexed: 01/03/2023]
Abstract
A new strategy based on enzymatically engineered primer extension poly-thymine (EPEPT) and nanomaterials in situ generation technology is reported for direct detection of microRNA (miRNA) in a fluorescence turn-on format using the sequential and complementary reactions catalyzed by Klenow Fragment exo- (KFexo-) and terminal deoxynucleotidyl transferase (TdTase). The short miRNA can be efficiently converted into long poly-thymine (polyT) sequences, which function as template for in situ formation of fluorescence copper nanoparticles (CuNPs) as nano-dye for detecting miRNA. The polyT-CuNPs can effectively form and emit intense red fluorescence under the 340nm excitation. For the proof of concept, microRNA-21 (miR-21) was selected as the model target to testify this strategy as a versatile assay platform. By directly using miR-21 as the primer, the simple, rapid and sensitive miRNA detection was successfully achieved with a good linearity between 1pM and 1nM and a detection limit of 100fM. Thus, the EPEPT strategy holds great potential in biochemical sensing research as an efficient and universal platform.
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Affiliation(s)
- Bao-Zhu Chi
- College of Chemistry and Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Ru-Ping Liang
- College of Chemistry and Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, China.
| | - Wei-Bin Qiu
- College of Chemistry and Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Yan-Hong Yuan
- College of Chemistry and Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Jian-Ding Qiu
- College of Chemistry and Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, China.
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25
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Wu C, Zhou C, Wang E, Dong S. A label-free and enzyme-free system for operating various logic devices using poly(thymine)-templated CuNPs and SYBR Green I as signal transducers. NANOSCALE 2016; 8:14243-14249. [PMID: 27396871 DOI: 10.1039/c6nr04069a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
For the first time by integrating fluorescent polyT-templated CuNPs and SYBR Green I, a basic INHIBIT gate and four advanced logic circuits (2-to-1 encoder, 4-to-2 encoder, 1-to-2 decoder and 1-to-2 demultiplexer) have been conceptually realized under label-free and enzyme-free conditions. Taking advantage of the selective formation of CuNPs on ss-DNA, the implementation of these advanced logic devices were achieved without any usage of dye quenching groups or other nanomaterials like graphene oxide or AuNPs since polyA strands not only worked as an input but also acted as effective inhibitors towards polyT templates, meeting the aim of developing bio-computing with cost-effective and operationally simple methods. In short, polyT-templated CuNPs, as promising fluorescent signal reporters, are successfully applied to fabricate advanced logic devices, which may present a potential path for future development of molecular computations.
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Affiliation(s)
- Changtong Wu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China.
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26
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Zhu Y, Wang H, Wang L, Zhu J, Jiang W. Cascade Signal Amplification Based on Copper Nanoparticle-Reported Rolling Circle Amplification for Ultrasensitive Electrochemical Detection of the Prostate Cancer Biomarker. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2573-2581. [PMID: 26765624 DOI: 10.1021/acsami.5b10285] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An ultrasensitive and highly selective electrochemical assay was first attempted by combining the rolling circle amplification (RCA) reaction with poly(thymine)-templated copper nanoparticles (CuNPs) for cascade signal amplification. As proof of concept, prostate specific antigen (PSA) was selected as a model target. Using a gold nanoparticle (AuNP) as a carrier, we synthesized the primer-AuNP-aptamer bioconjugate for signal amplification by increasing the primer/aptamer ratio. The specific construction of primer-AuNP-aptamer/PSA/anti-PSA sandwich structure triggered the effective RCA reaction, in which thousands of tandem poly(thymine) repeats were generated and directly served as the specific templates for the subsequent CuNP formation. The signal readout was easily achieved by dissolving the RCA product-templated CuNPs and detecting the released copper ions with differential pulse stripping voltammetry. Because of the designed cascade signal amplification strategy, the newly developed method achieved a linear range of 0.05-500 fg/mL, with a remarkable detection limit of 0.020 ± 0.001 fg/mL PSA. Finally, the feasibility of the developed method for practical application was investigated by analyzing PSA in the real clinical human serum samples. The ultrasensitivity, specificity, convenience, and capability for analyzing the clinical samples demonstrate that this method has great potential for practical disease diagnosis applications.
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Affiliation(s)
- Ye Zhu
- Key Laboratory of Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China
| | - Huijuan Wang
- School of Pharmaceutical Sciences, Shandong University , Jinan 250012, China
| | - Lin Wang
- Department of Radiation Oncology, Qilu Hospital, Shandong University , Jinan 250012, China
| | - Jing Zhu
- Key Laboratory of Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China
| | - Wei Jiang
- Key Laboratory of Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, China
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27
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Li H, Wang C, Gai P, Hou T, Ge L, Li F. Unique quenching of fluorescent copper nanoclusters based on target-induced oxidation effect: a simple, label-free, highly sensitive and specific bleomycin assay. RSC Adv 2016. [DOI: 10.1039/c6ra09054k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
A novel label-free fluorescence biosensor for bleomycin (BLM) detection was developed by combining the excellent fluorescence behavior of copper nanoclusters (CuNCs) and the unique oxidation capability of BLM–Fe2+ complex toward CuNCs.
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Affiliation(s)
- Haiyin Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- P. R. China
| | - Chuanfeng Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- P. R. China
| | - Panpan Gai
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- P. R. China
| | - Ting Hou
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- P. R. China
| | - Lei Ge
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- P. R. China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- P. R. China
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NiCu Alloy Nanoparticle-Loaded Carbon Nanofibers for Phenolic Biosensor Applications. SENSORS 2015; 15:29419-33. [PMID: 26610505 PMCID: PMC4701341 DOI: 10.3390/s151129419] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 10/21/2015] [Accepted: 11/13/2015] [Indexed: 11/30/2022]
Abstract
NiCu alloy nanoparticle-loaded carbon nanofibers (NiCuCNFs) were fabricated by a combination of electrospinning and carbonization methods. A series of characterizations, including SEM, TEM and XRD, were employed to study the NiCuCNFs. The as-prepared NiCuCNFs were then mixed with laccase (Lac) and Nafion to form a novel biosensor. NiCuCNFs successfully achieved the direct electron transfer of Lac. Cyclic voltammetry and linear sweep voltammetry were used to study the electrochemical properties of the biosensor. The finally prepared biosensor showed favorable electrocatalytic effects toward hydroquinone. The detection limit was 90 nM (S/N = 3), the sensitivity was 1.5 µA µM−1, the detection linear range was 4 × 10−7–2.37 × 10−6 M. In addition, this biosensor exhibited satisfactory repeatability, reproducibility, anti-interference properties and stability. Besides, the sensor achieved the detection of hydroquinone in lake water.
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